It's not four layers , Five layers.The layersof theatmosphere- the Troposphere, Stratosphere, Mesosphere, Thermosphere, and Exosphere.
No. You can not see Mercury from Earth!
see you at the
we can see continents on earth
Your home is smaller than the earth but you can see it!
they can take pictures or just look outwards and see earth. it is possible to see earth from the moon without high technology
The earth.
Google Earth
Yes.
From space but not earth.
Earth revolves around the sun. That is why the constellations we see from Earth appear to change.
As it orbits the Earth there are times it can see the moon and there are times when it is on the opposite side of the Earth to the moon, so it can't see it.